Recent Topics on Digital Terrestrial TV Broadcasting in Japan
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1 DiBEG Digital Broadcasting Experts Group Recent Topics on Digital Terrestrial TV Broadcasting in Japan Sep. 3, 2003 Makoto KAIJIMA Toshiba Corporation Chairman of DiBEG
2 Schedule of Digital Broadcasting in Japan Satellite (CS) Now Satellite (BS) Analog End of Analog HDTV End of Analog SDTV Terrestrial 1998~ Pilot trial 2006 Tokyo, Osaka, Nagoya Others Analog Target of end Cable Analog/Digital Fully digital 2
3 K) More than 2millions Digital TV receivers Sales of Digital TV(ISDB-S) Shipment Total Total 2,194Kset 2,194Kset Set Set Top Top Box: Box: 830kset 830kset Integrated Integrated TV TV (CRT): (CRT): 1,096kset 1,096kset Integrated Integrated TV TV (Plasma) (Plasma) : : 268kset 268kset 48 millions household in Japan Dec 2000, Digital BS Service started June 2003, FIFA World Cup was held in Korea and Japan 3
4 Frequency Circumstance in Japan and Analogue Channel Re-arrangement The number of transmission stations for analogue TV ISDB-T channels UHF lower channels basically Re-arrangement of analogue channels Re-arrangement of analogue channels except major transmitters Mainly used for translators VHF Channels UHF 4
5 Schedule for Roll-Out of Digital Terrestrial Broadcasting The analog to analog shift started on Feb. 9. Digital terrestrial broadcasting will begin in the three major metropolitan areas of Tokyo, Osaka, and Nagoya in December The government's plan describes a schedule for broadcasting to have started in all major cities by the end of 2006, and for current analog broadcasts to have been completely replaced with digital broadcasting by July In view of the launch of digital terrestrial broadcasting, an analog-to-analog shift(re-arrangement of analogue TV channels) has already started last February. This shift changes the frequencies used by analog terrestrial broadcasting to secure the channels needed for digital broadcasting. Reference: 5
6
7 Requirements for DTTV license Examples of DTTV service HDTV + one-segment Multi-SDTV + one segment August,1,2002 one segment is usable as a complement of main program 2/3 of DTTV programs are same with programs of analog TV broadcasting a day. HDTV programs should be televised at more than 50% of broadcasting hours a week. Broadcasters must televise more than 10% educational programs and more than 20% cultural programs. Broadcasters build relay stations without hesitating. Broadcasters positively televise programs for sight and hearing handicapped persons. Broadcasters are able to make engineering services. 7
8 Stage Stage Enlargement of DTTB Service Area Tokyo Metropolitan Area Should be covered by translator by Dec.1st,2003 NHK General NHK Educational Private Network Tokyo Tower End of Dec,200 NHK General NHK Educational Private Network End of Dec,200 (maximum output) All Broadcasters 8
9 Spread Prediction of DTTB Householders 9
10 Spread Prediction of DTTB Receivers number 10
11 11-Mbps HDTV Compression Nov.2002 InterBEE2002 was held on November, 2002 High performance encoders for HDTV using new compression technology has exhibited, that can compress HDTV as far as 11 Mbps without major artifacts. Even with the difficult-pictures, the degradation of picture-quality could not be noticeable with these encoders. These 11-Mbps encoders are being developed by NEC Corporation and Mitsubishi Electric Corporation. 11
12 Toyota Central Lab demonstrated HDTV Mobile Reception using Adaptive Array Antenna Jan,29,2003 Adaptive Array Antenna Pole type antenna Adaptive Array Antenna (conventional) attached on wind shield UHF 15ch (whole segment reception) Mode 3, 64QAM, 3/4 Guard interval: 1/8(128 s) Threshold C/N=20.1dB Pole type antenna Reception rate Adaptive Array Antenna Reference: 12
13 Toshiba Announced Sales about New TV Sets April, 21,2003 ISDB-T and ISDB-S tuners are installed. Upgrade software can be installed by a customer. Equips LAN terminal for interactive TV Sales has commenced on June 5 and got off to a good start(open price). 36D D D4000 Smart-media TM Reference: 13
14 Panasonic started selling ISDB-T STB by subscription June,4,2003 Customers who have or will buy Panasonic TV set can buy it. This STB can be connected to only Panasonic TV set. For ISDB-T and ISDB-S The price is 380$. Delivery starts from December
15 SONY announced DST-TX1 Aug,7,2003 This Tuner is able to be connected to D4 connector (HDTV) TV set and recordable via i-link i/f. For ISDB-T and ISDB-S (BS +CS110) The price is open (~660$). Delivery start 21 October. 15
16 Prototype of Cellular Phone with a ISDB-T one-segment receiver Sanyo announced onesegment receiver installed on the 3G cellular phone. Specifications; Diversity reception UHF13 53ch Multiplexing; MPEG-2 TS Video Coding ; MPEG-4 Simple Profile * QVGA 15f/s Audio Coding; MPEG-2 AAC LC Profile Recordable on Flash memory. 128MB=30min Sanyo has a plan to demonstrate at CEATEC JAPN2003 next Oct.,,2003 * Video coding system for ISDB-T one-segment broadcasting has not been decided yet. Sanyo temporally used MPEG-4 SP for this demonstration. 16
17 Prototype of Cellular Phone with a ISDB-T one-segment receiver NEC announced and demonstrated on June 10. One-segment demodulator LSI announced last Oct. is installed on the 3G cellular phone. Specifications; UHF13 62ch Multiplexing; MPEG-2 TS Video Coding ; MPEG-4 Simple Profile * SQVGA(160x120pix), 15f/s Audio Coding; MPEG-2 AAC LC Profile Software for EPG and Data broadcasting is not installed yet. NEC has a plan to demonstrate at Telecom2003 next Oct. * Video coding system for ISDB-T one-segment broadcasting has not been decided yet. NEC temporally used MPEG-4 SP for this demonstration. 17
18 Promoting National Organizations Organization Setup Representative Members Functions Terrestrial Digital Broadcasting Promotion Headquarters, MPHPT Aug 2003 Mr.Katayama Minister,MPHPT Head) Minister,MPHPT Vice-Minister, MPHPT Secretary General, MPHPT Executives,MPHPT the smooth implementation of DTTB The association for promotion of digital broadcasting (D-PA) Aug 2003 Mr. Kitagawa (Chairman) NHK 127 Commercial TV B/C 153 Receiver - Manufacturers etc. Enforcement of RX/TX std. Operation of ES RMP National Conference for promotion of terrestrial digital broadcasting May 2003 Mr. Yamaguchi (Chairman) NHK 127 Commercial TV B/C Government(MPHPT) Manufacturers,Retailers Follow-up of Action plan for digital migration Consumers society National Council for Promotion of digital terrestrial July 2001 Mr. Kitagawa (President) NHK 127 Commercial TV B/C Government (MPHPT) Analogue ch. Shifts & Publicity broadcasting 18
19 Latest News In order to verify the function of the transmitter/ant., Measurement of field strength with in Service area and the interference by digital to existing analogue channel, digital full power has transmitted at Tokyo and Osaka on 6-8 August in midnight. In Tokyo, Max 10kW: In Osaka, Max 3kW Almost all results are good. No severe problem found out. 19
20 Near Future National wide frequency assignment for digital broadcasting except Tokyo, Osaka and Nagoya will be done in September 2003 for 2006 launching of DTTB. In some area (2Areas=7Prefectures), it may be done in December
21 Thank you! Japan DTB is about to take off and will be a first country in success.
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